127720070 has 16 divisors (see below), whose sum is σ = 233046720. Its totient is φ = 50387904.

The previous prime is 127720069. The next prime is 127720121. The reversal of 127720070 is 70027721.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86750 + ... + 88209.

It is an arithmetic number, because the mean of its divisors is an integer number (14565420).

Almost surely, 2^127720070 is an apocalyptic number.

127720070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127720070 is a deficient number, since it is larger than the sum of its proper divisors (105326650).

127720070 is a wasteful number, since it uses less digits than its factorization.

127720070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175039.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 127720070 is about 11301.3304526503. The cubic root of 127720070 is about 503.6007667104.

Adding to 127720070 its reverse (70027721), we get a palindrome (197747791).

The spelling of 127720070 in words is "one hundred twenty-seven million, seven hundred twenty thousand, seventy".